The quiet expansion of Beijing’s remote nuclear weapons complex, Lop Nur, points to years of preparation for a potential ...

The trial included first-of-its-kind thermal preconditioning of the bomb before carriage on an F-35 fighter jet.

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US President Donald Trump and Russian President Vladimir Putin have spent weeks trading threats to restart nuclear tests, an ...

Russian officials say they are waiting for an explanation from President Donald Trump about nuclear testing. He hasn't given ...

The confusion rattled allies and arms control experts alike. Energy Secretary Chris Wright soon intervened to clarify that ...

The Energy Department and Air Force in August successfully carried out the first tests dropping unarmed B61-12 nuclear ...

Russian Foreign Minister Sergei Lavrov said on Tuesday that Moscow will conduct nuclear tests if any other nuclear power does ...

Over a 40-year period, up to 1989, the Soviet Union detonated 456 nuclear weapons in present-day Kazakhstan. A new ...

Understanding former nuclear experiments as “tests” is highly misleading, as each atomic explosion has released a tremendous ...